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20 January, 01:42

The length of a rectangle is 3 meters less than twice the width if the area is 104 square meters find the length

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  1. 20 January, 03:28
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    X-width

    2x-3-length

    A=lxw

    104 = (2x-3) (x)

    104=2x^2-3x

    52=x^2-3/2 (x)

    52+9/16=x^2-3/2 (x) + 9/16

    841/16 = (x-3/4) ^2

    29/4=x-3/4

    x=32/4 or 8

    length is 2 (8) - 3 which is 13 and width is 8
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